Name: Anti-KV1.3 (KCNA3) (extracellular)-PE Antibody
Brand: Alomone Labs
SKU: APC-101-PE
Availability: InStock

Cat #: APC-101-PE

Alternative Name Potassium voltage-gated channel subfamily A member 3

Lyophilized Powder yes

Type: Polyclonal

Host: Rabbit

Reactivity: h, m, r

Immunogen

Peptide KDYPASTSQDSFEA(C), corresponding to amino acid residues 263-276 of human K_V1.3 (Accession P22001). 1^st extracellular loop.

Accession (Uniprot) Number P22001

Gene ID 3738

Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.

Homology Rat, mouse – 12/14 amino acid residues identical.

Purity Affinity purified on immobilized antigen.

Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN₃.

Isotype Rabbit IgG.

Label R-Phycoerythrin (R-PE).

Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.

Reconstitution 50 µl double distilled water (DDW).

Antibody concentration after reconstitution 1 mg/ml.

Storage after reconstitution The reconstituted solution can be stored at 4°C, protected from the light, for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 × g 5 min).

Standard quality control of each lot Western blot analysis (unlabeled antibody, #APC-101), and direct flow cytometry (labeled antibody).

Applications: fc, lci

May also work in: ic*

Direct flow cytometry

Cell surface detection of K_V1.3 in human Jurkat T-cell leukemia cells:
^___ Cells.
^___ Cells + rabbit IgG isotype control-PE.
^___ Cells + Anti-K_V1.3 (KCNA3) (extracellular)-PE Antibody (#APC-101-PE), (5 µg).
Cell surface detection of K_V1.3 in mouse TK-1 T-cell lymphoma cells:
^___ Cells.
^___ Cells + rabbit IgG isotype control-PE.
^___ Cells + Anti-K_V1.3 (KCNA3) (extracellular)-PE Antibody (#APC-101-PE), (5 µg).

References

Chandy, K.G. et al. (2001) Toxicon 39, 1269.
Koo, G.C. et al. (1997) J. Immunol. 158, 5120.
Grissmer, S. et al. (1994) Mol. Pharmacol. 45, 1227.
Garcia-Calvo, M. et al. (1993) J. Biol. Chem. 268, 18866.
Garcia, M.L. et al. (1994) Biochemistry 33, 6834.
Koschak, A. et al. (1998) J. Biol. Chem. 273, 2639.
Kalman, K. et al. (1998) J. Biol. Chem. 273, 32697.

Scientific background

K_V1.3 belongs to the Shaker family of voltage-dependent K⁺ channels. The channel, encoded by KCNA3, is widely expressed in the brain, lung and osteoclasts and in several cell populations of hematopoietic origin. The prominence of K_V1.3 channels in these cells (particularly in T lymphocytes) directed much research attention. It was found that K_V1.3 is the main channel responsible for maintaining the resting potential in quiescent cells and regulating the Ca²⁺ signaling that is indispensable for normal T lymphocyte activation.^1,2 Based on the central role of K_V1.3 in regulating the initiation of an immune response, the channel has been recognized as a potential target for immunosuppressant drugs.¹

K_V1.3 channels are potently inhibited by several venomous peptide toxins among them Charybdotoxin (2.6 nM), Noxiustoxin (1 nM), Kaliotoxin (0.65 nM), Margatoxin (0.05 nM), Agitoxin-1 (1.7 nM), Agitoxin-2 (0.004 nM), Hongotoxin-1 (0.09 nM) and Stichodactyla toxin (0.01 nM).^3-7

The central role of K_V1.3 in immune system cells created a real need for a specific antibody that would be able to work in flow cytometry applications.

Lyophilized Powder

Last update: 12/08/2021

Anti-K_V1.3 (KCNA3) (extracellular) Antibody (#APC-101) is a highly specific antibody directed against an extracellular epitope of the human protein. The antibody can be used in western blot, immunohistochemistry, live cell imaging and indirect flow cytometry applications. It has been designed to recognize K_V1.3 potassium channel from human, mouse and rat samples.

Anti-K_V1.3 (KCNA3) (extracellular)-PE Antibody (#APC-101-PE) is directly conjugated to Phycoerythrin (PE). This labeled antibody can be used in immunofluorescent applications such as direct flow cytometry and live cell imaging.

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Anti-K_V1.3 (KCNA3) (extracellular)-PE Antibody

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Anti-KV1.3 (KCNA3) (extracellular)-PE Antibody